Shielding film positioning and fixing device

Abstract

The utility model discloses a shielding film positioning and fixing device which comprises a base, connecting blocks are fixedly connected to the two sides of the base, lifting grooves are formed in the connecting blocks, lifting blocks are connected into the lifting grooves in a sliding mode, a positioning roller is rotationally connected between the lifting blocks on the two sides, and connecting pieces are connected to the two sides of the base in a threaded mode. A connecting plate is fixedly connected to one side of the connecting piece, a rotating shaft is fixedly connected to the connecting plate, two sets of outer connecting arms are fixedly connected to the outer side of the rotating shaft, inner connecting arms are slidably connected to the interiors of the outer connecting arms, and an auxiliary roller is rotatably connected between the inner connecting arms. The shielding film can be positioned according to different use environments, it can be ensured that the shielding film can be tightly attached to the surface needing to be shielded, and the risk of missed coating or dislocation is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to shielding film technical field, concretely is shielding film positioning fixing device. BACKGROUND

[0002] The shielding film is a kind of widely used protective film, mainly used to shield and protect specific area in the process of spraying paint, decoration, electronic manufacturing etc., prevent it from being polluted or damaged by paint, dust, moisture etc.

[0003] The shielding film cannot be positioned and fixed when using, shielding film is easy to deviate when spraying, cause that spraying effect is bad, seriously need to re-spraying, influence spraying efficiency. INVENTION CONTENTS

[0004] The utility model discloses a shielding film positioning fixing device to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: shielding film positioning fixing device, including base, the both sides of base are fixedly connected with connecting block, the inside of connecting block is equipped with lifting groove, the inside sliding connection of lifting groove has lifting block, the both sides rotatingly connected with positioning roller between lifting block, the both sides of base are connected with connecting piece, the inside of connecting piece is equipped with mounting hole, the one side of connecting piece is fixedly connected with connecting plate, connecting plate is fixedly connected with rotating shaft, the outside fixed connection of rotating shaft has two groups of outer connecting arms, the inside sliding connection of outer connecting arm has inner connecting arm, and auxiliary roller is rotatably connected between inner connecting arm.

[0006] Preferably, the inside of one side lifting block is screw-connected with first threaded rod, and the lower part of the first threaded rod is rotatably connected with the upper part of the lifting groove.

[0007] Preferably, the inside of the both sides of connecting block is equipped with limiting groove communicated with lifting groove, the both sides of connecting block are fixedly connected with embedding block, and the embedding block is slidingly connected in the inside of limiting groove.

[0008] Preferably, the outside of inner connecting arm is equipped with a plurality of positioning holes, the inside of one side of outer connecting arm is slidingly connected with locking rod matched with positioning hole, one end of locking rod is fixedly connected with fixed sheet, and spring is fixedly connected between fixed sheet and outer connecting arm, and the spring is sleeved on the outside of locking rod.

[0009] Preferably, the middle part of rotating shaft is fixedly connected with limiting block outside, and sliding sheet is slidingly connected on the outside of rotating shaft and limiting block, the side of sliding sheet facing outer connecting arm is fixedly connected with gear ring, and the side of outer connecting arm is equipped with gear slot matched with gear ring.

[0010] Preferably, the sliding piece is internally threaded with a second threaded rod, and the rotating shaft is externally provided with a fixing hole matched with the second threaded rod.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model discloses a positioning roll and auxiliary roll cooperate mode can position the shielding film according to different use environment, can ensure that shielding film can be closely attached on the surface that needs to shield, reduces the risk of leakage or misplacement. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is first perspective three -dimensional structure schematic diagram of the utility model;

[0014] Figure 2 It is second perspective connecting arm structure schematic diagram of the utility model;

[0015] Figure 3 It is third perspective lifting groove structure schematic diagram of the utility model;

[0016] Figure 4 It is fourth perspective gear ring structure schematic diagram of the utility model.

[0017] In the drawing: 1, base, 2, connecting block, 3, lifting groove, 4, lifting block, 5, positioning roll, 6, first threaded rod, 7, limit groove, 8, embedded block, 9, connecting piece, 10, mounting hole, 11, connecting plate, 12, outer connecting arm, 13, inner connecting arm, 14, auxiliary roll, 15, positioning hole, 16, locking rod, 17, spring, 18, fixed sheet, 19, limit block, 20, fixed hole, 21, sliding piece, 22, gear ring, 23, gear slot, 24, second threaded rod, 25, rotating shaft. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the utility model.

[0019] Please refer to Figures 1-4This utility model provides a technical solution: a masking film positioning and fixing device, including a base 1. The lower part of the base 1 can be adhered to a wall or the ground to fix the device. Connecting blocks 2 are fixedly welded to both sides of the base 1. Lifting grooves 3 are opened inside the connecting blocks 2. Lifting blocks 4 are slidably installed inside the lifting grooves 3. Positioning rollers 5 are rotatably installed between the two lifting blocks 4. By placing the masking film between the base 1 and the positioning rollers 5, the lifting blocks 4 move downward along the lifting grooves 3, so that the positioning rollers 5 press the masking film and fix the masking film. Connecting pieces 9 are threadedly installed on both sides of the base 1. The connecting plate 9 has an internal mounting hole 10 for connecting the screw to the base 1. A connecting plate 11 is fixedly welded to one side of the connecting plate 9. A rotating shaft 25 is fixedly welded to the connecting plate 11. Two sets of outer connecting arms 12 are fixedly welded to the outside of the rotating shaft 25. An inner connecting arm 13 is slidably installed inside the outer connecting arm 12. An auxiliary roller 14 is rotatably installed between the inner connecting arms 13. By rotating the two outer connecting arms 12 around the rotating shaft 25 and sliding the inner connecting arm 13 inside the outer connecting arm 12, the angle and position of the auxiliary roller 14 can be adjusted, thereby cooperating with the positioning roller 5 to fix the use angle of the masking film.

[0020] A first threaded rod 6 is threaded inside the lifting block 4 on one side. The lower part of the first threaded rod 6 is rotatably connected to the upper part of the lifting groove 3. By rotating the first threaded rod 6, the lifting block 4 is driven to move up and down along the lifting groove 3, thereby adjusting the height of the lifting block 4. The connecting block 2 has limiting grooves 7 on both sides that communicate with the lifting groove 3. Embedded blocks 8 are fixedly welded to both sides of the connecting block 2. The embedded blocks 8 are slidably installed inside the limiting grooves 7 to prevent the embedded blocks 8 from disengaging from the limiting grooves 7. Several positioning holes 15 are opened on the outer side of the inner connecting arm 13. A locking rod 16 that matches the positioning holes 15 is slidably installed inside one side of the outer connecting arm 12. A fixing plate 18 is fixedly welded to one end of the locking rod 16. A spring 17 is fixedly welded between the fixing plate 18 and the outer connecting arm 12. The spring 17 is sleeved on the outer side of the locking rod 16. The spring 17 locks the locking rod by pulling the fixing plate 18. The rod 16 is inserted into the positioning hole 15 at the corresponding position to fix the extension distance of the inner connecting arm 13; a limiting block 19 is fixedly welded to the outer side of the middle part of the rotating shaft 25, and a sliding piece 21 is slidably installed on the outer side of the rotating shaft 25 and the limiting block 19 to ensure that the sliding piece 21 cannot rotate; a toothed ring 22 is fixedly welded to the side of the sliding piece 21 facing the outer connecting arm 12, and a toothed groove 23 is opened on the side of the outer connecting arm 12 to match the toothed ring 22; by moving the sliding piece 21 along the rotating shaft 25, the toothed ring 22 is inserted into the toothed groove 23, thereby fixing the rotation angle of the outer connecting arm 12; a second threaded rod 24 is installed inside the sliding piece 21, and a fixing hole 20 is opened on the outer side of the rotating shaft 25 to match the second threaded rod 24; by inserting the second threaded rod 24 into the fixing hole 20, the position of the sliding piece 21 is fixed.

[0021] Working principle: In use, the shielding film is placed between the base 1 and the positioning roller 5. By rotating the first threaded rod 6, the lifting block 4 moves downward along the lifting groove 3, causing the positioning roller 5 to press the shielding film and fix it. By rotating the outer connecting arms 12 on both sides around the rotating shaft 25, and by moving the sliding piece 21 along the rotating shaft 25, the toothed ring 22 is inserted into the toothed groove 23, thereby fixing the rotation angle of the outer connecting arm 12. The inner connecting arm 13 slides along the inside of the outer connecting arm 12, thereby adjusting the angle and position of the auxiliary roller 14. The spring 17 pulls the fixing piece 18, causing the locking rod 16 to be inserted into the positioning hole 15 at the corresponding position, thereby fixing the extension distance of the inner connecting arm 13, thus cooperating with the positioning roller 5 to fix the use angle of the shielding film.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A masking film positioning and fixing device, comprising a base (1), characterized in that: The base (1) is fixedly connected to two sides of a connecting block (2). The connecting block (2) has a lifting groove (3) inside. The lifting groove (3) has a lifting block (4) slidably connected inside. The lifting blocks (4) on both sides are rotatably connected to a positioning roller (5). The base (1) is threadedly connected to two sides of a connecting piece (9). The connecting piece (9) has an installation hole (10) inside. The connecting piece (9) has a connecting plate (11) fixedly connected to one side. The connecting plate (11) has a rotating shaft (25) fixedly connected to it. The rotating shaft (25) has two sets of outer connecting arms (12) fixedly connected to the outside. The outer connecting arms (12) have an inner connecting arm (13) slidably connected inside. The inner connecting arms (13) are rotatably connected to each other.

2. The shielding film positioning and fixing device according to claim 1, characterized in that: One side of the lifting block (4) has a first threaded rod (6) internally threaded, and the lower part of the first threaded rod (6) is rotatably connected to the upper part of the lifting groove (3).

3. The shielding film positioning and fixing device according to claim 1, characterized in that: The connecting block (2) has a limiting groove (7) on both sides that communicates with the lifting groove (3). An embedded block (8) is fixedly connected to both sides of the connecting block (2), and the embedded block (8) is slidably connected inside the limiting groove (7).

4. The shielding film positioning and fixing device according to claim 1, characterized in that: The inner connecting arm (13) has several positioning holes (15) on its outer side. The outer connecting arm (12) has a locking rod (16) that matches the positioning holes (15) on one side. One end of the locking rod (16) is fixedly connected to a fixing piece (18). A spring (17) is fixedly connected between the fixing piece (18) and the outer connecting arm (12). The spring (17) is sleeved on the outside of the locking rod (16).

5. The shielding film positioning and fixing device according to claim 1, characterized in that: A limiting block (19) is fixedly connected to the outer side of the middle part of the rotating shaft (25). A sliding piece (21) is slidably connected to the outer side of the rotating shaft (25) and the limiting block (19). A toothed ring (22) is fixedly connected to the side of the sliding piece (21) facing the outer connecting arm (12). A toothed groove (23) for the toothed ring (22) is opened on one side of the outer connecting arm (12).

6. The shielding film positioning and fixing device according to claim 5, characterized in that: The sliding plate (21) is internally threaded with a second threaded rod (24), and the rotating shaft (25) has a fixing hole (20) on its outer side that matches the second threaded rod (24).

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